Automatic recirculation valve

Details Automatic recirculation valve Automatic recirculation valve

1995-01-23

1996-08-27

Hepperle, Stephen M.

Fluid handling

Self-proportioning or correlating systems

Self-controlled branched flow systems

13711503, 251126, F16K 1700

Patent

active

055491316

ABSTRACT:
An automatic recirculation valve having a body portion, a central hub integral with said body portion and inlet, main outlet and recirculation outlets. A main valve element responsive to flow from said inlet to said main outlet includes a hollow stem forming a bypass valve member through which recirculation fluid flows. A shaft guide bushing surrounding the valve stem and bypass adapter in the bypass outlet provides a recirculation fluid passage and imparts a swirling movement to the recirculation fluid exiting the recirculation outlet to protect the valve body and downstream piping from damage.

REFERENCES:
patent: 60378 (1866-12-01), Hunt
patent: 1555851 (1925-10-01), Van Emon
patent: 4244388 (1981-01-01), Feiss
patent: 4779639 (1988-10-01), Loss et al.
patent: 4941502 (1990-07-01), Loos et al.
patent: 4967783 (1990-11-01), Loos
patent: 5172716 (1992-12-01), Paptzun
patent: 5333638 (1994-08-01), Maxwell

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